He somehow stayed alive. Either by escaping Bolivia or never going there in the first place. What is his role in the 1982 Falkland Islands War? I found this interesting to think about given his Argentinian birth and career in guerilla warfare.
ASB tends to be for something more like "Che Guevara resurrected after his death in Bolivia." Him merely escaping/avoiding death in a realistic manner doesn't necessarily require the aid of Alien Space Bats.